Discussed below is how to control when a formula calculates.
Excel Formula Training. Formulas are the key to getting things done in Excel. In this accelerated training, you'll learn how to use formulas to manipulate text, work with dates and times, lookup values with VLOOKUP and INDEX & MATCH, count and sum with criteria, dynamically rank values, and create dynamic ranges. For the first method, go to the File tab in the ribbon and select Options. When the Excel Options dialog box opens, select Formulas from the list of options on the left. Select Manual from the Calculation options. Click on the down arrow for Calculation Options and make sure that you select Manual.
The calculation mode of a workbook controls whether its formulas calculate automatically or manually when cell values are changed.
How to Turn Off/On Microsoft Excel's Calculation Mode
Excel 2016 Mac Switch To Manual Calculations Pdf
Microsoft Excel has the capability for a user to control its workbook calculation mode. A user will set this mode to manual disabling all calculations when a workbook takes a long time to calculate when new values are entered. Generally this time lag occurs when you have thousands of complex formulas in a workbook. To set the calculation mode to manual, proceed to the Ribbon, select the Formulas tab and then find the Calculation grouping on the tab. Click on the Calculation Options button and select you guessed it Manual. This process is pictured to the below.
Once manual is engaged, Excel will only recalculate when you tell it to. You can recalculate by pressing the F9 key or you can click the Calculate button in the status bar at the bottom left-hand corner of the Excel screen. Note that Shift+F9 can be pressed to only calculate the sheet that you are on. By the way, looking for this button when a workbook first opens or is being used is a great way to know instantly if the calculation mode has been set to manual. Note that if the workbook has a circular reference, bad idea, then this button will also be present. Also if you set the mode to manual and you save your workbook, that setting will be stored with the workbook so when the file is reopened, it will reengage. Be careful because many Excel users are not used to seeing the calculation mode disabled and freak out when first encountering it. To turn it back on, select Automatic from the Calculation Options button.
How to stop auto calculation in Excel?
In general, when you use a formula in a worksheet, for instance, in Cell C1, you use this formula =A1+B2, and the formula will automatically calculate with the change of data in A1 and B2. Now if you want to stop the auto calculation, I can introduce two trick ways for you.
Stop auto calculation with Calculation Options in Excel
If you want to stop auto calculation in Excel, you just need to change the auto calculation to manual calculation.
Excel 2016 Mac Switch To Manual Calculations Download
Please click Formula > Calculation Options > Manual. See screenshot:
Now, the auto calculation has been stopped in Excel.
Stop auto calculation with VBA
Meanwhile, use a VBA can stop auto calculation.
If you are used to use VBA, you also can run the below VBA to merge every other row.
1. Hold ALT button and press F11 on the keyboard to open a Microsoft Visual Basic for Application window.
2. Click Insert > Module, and copy the VBA into the module.
VBA: Stop auto calculation with VBA
3. Then click Run to stop auto calculation.
Tip: If you want to restore the auto calculation, just click Formula > Calculation Options > Automatic.
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